Truck structure



Nov. 14, 19334.

' E. G. HALLQUIST 1,935,359

TRUCK STRUCTURE Filed Sept. 4, 1931 @H0/"neg ?atented f i -UNITED *STA-res; PArENfrorFicl;

1; f g5 \inafejiiaiiquit,Edwardsville, 111., assigner te General Steel Castingsorporation, vGranite City, 1ll., a, corporation of Delaware Application sptemberi, 1931. serialN0.`56Y1,2 e5fy o .l f irelaims.' (0-1054195) y''Ifln's invention relates to railway rolling stock bearing 13 for receiving a single .pivot 14 Isecured 'and consists particularly in a novel spring equal-v to the Walls of vthe Wheel piece.' Y f ,izer'system fortrucks, The equalizers on' oppositesides of the truck- In certain types of six'and eight wheel trucks may be arranged similarly to equalizers 8 and 9 the frame is supported on vthejournals on each so thatbars, having double pivotal connections '50 side of the truck through a'.Y Vseriesof interconivWith the frames will be 'directlyopposite each nected springs andfequaliz'er bars disposed v1onother, or the arrangemen'tfmay be reversed as gitudinally of the truckV and arranged end to end. shown so that bars havingsingle and double piv- Each spring may rest ontop of a corresponding ots, respectively, .willbe opposite" eachother. journal box'and have hangers at the ends thereof (Where the invention is applied to an eight for, supporting the equalizer barswhich are in vWheel truck,*another"spring and equalizer fbar turn pivotally secured to the frame.V Usually will be necessary on each side of theframe, and veach:,bar has a single pivot pin which provides the added bars may be secured to the frame either Y desirable flexibilityrof spring action enhancing by single or double pivotsy accordingly 'asgreat- "'15 the riding qualities but leaving the truck frame er flexibilityor stability isrequired'.

' free to tilt longitudinally to a greater extentk The labovel described equalizer arrangement .than is desirable.' ASpaced pvot elements have A`provides suicient flexibility to properlylequalize been used` to increase-thestability ofthe truck, the load onthe respective :journals resulting in butthis results in reduced ilexiloility.V smooth riding qualities of the truck.,l and at the l -Thefpresent invention 'hasffor its object the YSametime provides the'desired-stability; Theal- 75 provision of a truck spring equalizing. vsystem 'ternative arrangements ysuggested are both effec.. Which WillY have greater stability than is obtained tive in accomplishing the desired `objeect, although Where the equalizers are each secured by a single it is preferable to dispose equalizers having simi- Y vpivot tothe frame, and greater ViiexibilityV than lar, pivotal mounting `diagonally across the truck,

025 where vthe equalizers arel each secured tothe rather lthan drectly opposite each other, to `se- 90? frame by means of double pivots'. Vcure uniform action, gMoreover, "the invention is v) This. general object and others'indicated below not'limited-fto trucks, as shown, but mayadvan'- are attained in thev structure illustrated in the tageously be'used wherever an underframe mem'- accompanying drawing 'in Whichf vber 'is supported upon'threef' or more pairs of n Figure 1 isa top View of a truckembodying Wheels through a similar spring system.'V If de'- 35' the invention,l ySired,` the relation of the springs vand equalizers' Figure 2 ,is a vertical longitudinal sectiontaken With the frame and journals, respectively, may be substantially ontheline 2"'-2 of Figure 1. J reversed, that is, the equalizers may be mounted Figure 3 isa vertical transverse section taken on'the `journal boxes through singleand double on thejline 3- 3 of Figure 1. kpivotal connections andthe springs may direct- 9i?" i ,The invention is illustrated as applied toa six ly support the truck frame; f 'f f Wheel tender truckcomprising Wheelpiece 1 in- Obviouslymany of the features of the truck cluding pedestals 2, transoms 3, and a bolster 4 illustrated as Well as various details of the spring includingfcenter plate structure 15, allof said system are notessential vto the invention. 'Ihese 40 parts being supported on Wheels 5 through the may be varied Without departing fromthe spirit; c? usual journal boxes 17 resting on journal poro f the invention and exclusive use of all such vations 15 of axles 16.v i riations as comevvithin the'scope yof the ap- Wheel piecesl are r'substantially of box section pended Claimg is" contemplated and house leaf springs 6 having central bands What is'claimedfjs 1 y f 7 resting 011 the jeulnel bOXeS, and eqllelZeIS' 1. In combination, a railway vehicle frame, and 9 Which are Supported 011 hangers 10 SllSDeIld- Wheeled axles, and a load equalizing system for ed from'the ends 0f Springs 6L The le116. hangers carrying said frame on said axles and including may be anchored t0 'the frame 0rl Connected with apiurality of equalizer members carried on said adjacent Springs ofthe truck. f axles, at least one o said members supporting V Equalizer bar 8 has an elongated recess 11 have vsaid frame at a single point only, and another i055 inga pair of'concave depressions .in its lower.. of `said-members supporting said frame at a pluside for seating cylindrical pivots: 1 2v extendingV vrality of` independent pivot points. I transversely between the vertical side Walls of f `2. In combination, a railvvay-l vehicle frame, the Wheel piece. Equalizer bar 9 has a central wheeled axles, and a loadequalizing system for "5 5 cylindrical opening provided with 'a removable carrying said `frame on saidaxles and compris- 110"l ing a plurality of members carried on said axles along the side of said frame, a pin pivotally engaging one of said members and constituting the sole support between the same and said frame, and a plurality of pins engaging another of said members, each of said last-mentioned pins being arranged to serve as a iulcrum for said member on said frame.

3. In combination, a railway vehicle frame, wheeled axles, and a load equalizing system for carrying said frame on said axles and comprising a plurality of members carried on said axles along each side of said frame, one of said members on oneside of the frame having a single point of support only for said frame and the corresponding member on the opposite side of the frame having a plurality of points of support for said frame spaced longitudinally of said frame,.

each of said last-mentioned points being adapted to support the frame independently of the other.

" 4. In combinatioma railway vehicle frame,

y wheeled axles, and a load equalizing system lfor carrying said frame on said axles and comprising a plurality of members carried on lsaid axles along each side of said frame, one of said ymembers on one side supporting said frame at a single point only and the corresponding member on the opposite side supportingsaid frame at a' plurality o longitudinally spaced points,

eachof said last-mentioned pointsbeing adapted to support the frame independently of the other, threbeing another of said members on the first mentioned side of said frame provided with a'plurality of similarly spaced points of support and there being still another' of said members on the second mentioned-side of 'said frame having a single point of support only for saidframe. I

5. A spring equalizing system for a railway vehicle frame and .comprising a plurality of springs disposed Vsubstantially in va line, and equalizer bars intermediate and secured to adjacent springs, one of saidbars having a bearing element arranged for a single pivotal connection with the .supported frame and vanother of said bars having a bearing element arranged for a double pivotal connection .with theframe.

cle axles, a frame, and a spring equalizer system supporting said frame from rsaid axles and comprising a series'of spring disposed substantially in a line and supportedby said axles, and equalizer bars intermediate and secured to adjacent portions of said springs, at least one of said bars having a single pivotal connectionV with said frame, and another of said bars having a plurality of pivotal connections with said frame, said last mentioned connections being spaced longitudinally of said frame from each other;

'7. In arailway truck, a frame, a plurality of axle journals and boxes thereforV spaced longitudinally along said frame, and a spring equalizer system beneath a side of the frame and in- Vvdisposed longitudinally along each side of said frame and each resting on one of said journals,

Vand equalizer bars suspended from adjacent por- Ytions of said springs and supporting said frame, at least one of said bars on each side of said frame having `-a single pivotal connection with said frame, and another of said bars on each side having a plurality of pivotal connections with said frame, said last mentioned `connections being spaced Vlongitu'dinally of said frame from each other. Y

9. In a railway truck, aV frame, Vjournals disposed along the sides thereof, and spring equalizer systems comprisingl a series of leaf 4springs disposed longitudinally along each side of said frame and each resting on one of said journals,

and equalizer bars suspended from adjacent portionsof said'springs and; supporting said frame,

at least one of said bars having a single pivotal connection with said frame, and the corresponding bar on'the opposite side having a plurality of pivotal connections with said frame, `said last mentioned connections' being spaced longitudinally of said frame from each other.

l0. In a railway truck, a frame'having substantially' box section side members, journals,v and rspring equalizer systems disposed within said side members and comprising leaf springs, each Vresting on one of said journals, and equalizer vbars suspended from adjacent portions of said springs and supporting said frame, at least'one of said bars on each side of said framehaving a single pivotalconnecti'on withsaid frame, and another or" said barson each side having a pluralityof pivotal conneotionswith said frame, said, last mentioned connections being spaced longitudinally of said frame from each other.

11. In combinatiom a` pluralityv ofY railway vehicle journal elements, frame elements, and a spring equalizer system supporting said frame elements'from said journal elements andj'comprising a series of equalizer bars engaging certain of said elements, and springs intermediate and secured to adjacent portions of said bars and engaging others ofs'aid elements, at least one of saidfbars engaging theY corresponding element only at a single pivotal' point, and anotherl of said bars engaging the corresponding element at a plurality of longitudinally spaced pivot points. p EINAR GL'HALLQUIST. 

